Skylight for portable shelter



FIG. 1 is a front, right perspective view of a skylight for a portable shelter in accordance with the present invention;

FIG. 2 is a front, elevation view thereof;

FIG. 3 is a top, plan view thereof;

FIG. 4 is a right side, elevation view thereof;

FIG. 5 is a back, elevation view thereof; and,

FIG. 6 is a left side, elevation view thereof.

The broken lines showing a possible portable shelter structure with possible window and door openings and possible support structures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a skylight for a portable shelter, as shown and described. 